10 enero 2013

STROKE. Carotid Atherosclerosis and Risk of Subsequent Coronary Event in Outpatients With Atherothrombosis

Gaia Sirimarco, MD; Pierre Amarenco, MD; Julien Labreuche, BST; Pierre-Jean Touboul, MD; Mark Alberts, MD; Shinya Goto, MD; Joachim Rother, MD, PhD; Jean-Louis Mas, MD; Deepak L. Bhatt, MD, MPH; Philippe Gabriel Steg, MD; on behalf of the REACH Registry Investigators

Background and Purpose—The presence of carotid plaque reflects overall atherosclerotic burden and may predict coronary artery disease events. We examined the association among carotid atherosclerosis, history of atherothrombotic events, and risk of coronary events.

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. A virtual histology intravascular ultrasound analysis of coronary chronic total occlusions

Jun Guo MD, Akiko Maehara MD, Gary S Mintz MD, Kazuhiro Ashida MD, Jun Pu MD, Yunpeng Shang MD, Martin B. Leon MD, Gregg W. Stone MD, Jeffrey W. Moses MD, Masahiko Ochiai MD

Objectives: We used virtual histology intravascular ultrasound (VH-IVUS) to investigate plaque composition of chronic total occlusions (CTO).

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Visualization of coronary plaque in arterial remodeling using a new 40-MHz intravascular ultrasound imaging system

Tadashi Araki MD, Masato Nakamura MD, PhD, Makoto Utsunomiya MD, PhD, Kaoru Sugi MD, PhD

Objectives: The aim of this study was to characterize coronary plaque in target lesions with vessel remodeling using iMap-intravascular ultrasound (IVUS).

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Optical coherence tomography evaluation of drug-eluting stents

Aristotelis C. Papayannis MD, Daisha Cipher PhD, Subhash Banerjee MD, Emmanouil S. Brilakis MD, PhD

Aims: We performed a systematic review of studies reporting stent strut coverage and malapposition post implantation of different drug-eluting stent (DES), as assessed by optical coherence tomography (OCT).

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Hybrid intravascular ultrasound and optical coherence tomography catheter for imaging of coronary atherosclerosis

Brian H. Li BASC, Annie S.O. Leung BASC, Alan Soong BASC, Chelsea E. Munding BASC, Hyunggyun Lee BASC, Amandeep S. Thind PhD, Nigel R. Munce PhD, Graham A. Wright PhD, Corwyn H. Rowsell MD, Victor X.D. Yang MD, PhD, Bradley H. Strauss MD, PhD, FACC, F. Stuart Foster PhD, Brian K. Courtney MD, MSEE

Objective: To demonstrate the feasibility of imaging human coronary atherosclerosis using a novel hybrid intravascular ultrasound (IVUS) and optical coherence tomography (OCT) imaging catheter.

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Impact of different stent alloys on human vascular response to everolimus-eluting stent: An optical coherence tomography study: The OCTEVEREST

Giulio Guagliumi MD, FESC, Davide Capodanno MD, Hideyuki Ikejima MD, PhD, Hiram G. Bezerra MD, PhD, Vasile Sirbu MD, Giuseppe Musumeci MD, Luigi Fiocca, Nikoloz Lortkipanidze MD, Angelina Vassileva MD, Satoko Tahara MD, PhD, Orazio Valsecchi MD, Marco A. Costa MD, PhD

Background: New generation drug-eluting stents (DES) incorporate thinner struts and novel alloys to improve clinical performance. Nevertheless, the impact of novel stent materials and designs on human vascular response to DES remains elusive. We sought to evaluate the in-vivo coronary artery response to platinum-chromium (PtCr) versus cobalt-chromium (CoCr) stents featuring the same durable polymer and antiproliferative drug by optical coherence tomography (OCT).

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Comparison of efficacy and safety of intracoronary sodium nitroprusside and intravenous adenosine for assessing fractional flow reserve

Wojciech Rudzinski MD, PhD, Alfonso H. Waller MD, Arthur Rusovici MD, Abed Dehnee MD, Ali Nasur MD, Michael Benz MD, Salvador Sanchez CVT, Marc Klapholz MD, Edo Kaluski MD

Objectives: The purpose of this study was to compare the efficacy and safety of intracoronary (IC) nitroprusside and intravenous adenosine (IVA) for assessing fractional flow reserve (FFR).

01 febrero 2013

CIRCULATION: CARDIVASCULAR INTERVENTIONS. Transcatheter Closure of Post-myocardial Infarction Ventricular Septal Rupture

Gabriele Egidy Assenza, MD, Doff B. McElhinney, MD, Anne Marie Valente, MD, Disty D. Pearson, PA-C, Massimo Volpe, MD, Giuseppe Martucci, MDcM, Michael J. Landzberg, MD* and James E. Lock, MD*

Background—Ventricular septal rupture (VSR) after acute myocardial infarction (AMI) is a potentially lethal mechanical complication of acute coronary syndromes. Given high surgical mortality, transcatheter closure has emerged as a potential strategy in selected cases. We report our single-center experience with double-umbrella device percutaneous closure of post-AMI VSR.

01 febrero 2013

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Healing responses after bifurcation stenting with the dedicated TRYTON side-branch stent™ in combination with XIENCE-V™ stents

Objectives: We evaluated healing responses with optical coherence tomography (OCT), and clinical and angiographic outcome after bifurcation stenting with the TRYTON Side-Branch Stent™.

01 febrero 2013

CIRCULATION: CARDIVASCULAR INTERVENTIONS. Influence of the Amount of Myocardium Subtended by a Stenosis on Fractional Flow Reserve

Antonio Maria Leone, MD, PhD*, Alberto Ranieri De Caterina, MD*, Eloisa Basile, MD, Andrea Gardi, MS, Domenico Laezza, RVT, Mario Attilio Mazzari, MD, Rocco Mongiardo, MD, Rajesh Kharbanda, MD, Florim Cuculi, MD, Italo Porto, MD, PhD, Giampaolo Niccoli, MD, PhD, Francesco Burzotta, MD, PhD, Carlo Trani, MD, FESC, Adrian Paul Banning, MD, Antonio Giuseppe Rebuzzi, MD and Filippo Crea, MD, FESC

Background—Fractional flow reserve (FFR) specifically relates to the severity of a stenosis to the mass of tissue to be perfused. Accordingly, the larger the territory to be perfused, the greater the flow and the pressure gradient induced by maximal hyperemia. Although this notion may be considered intuitive, its unequivocal demonstration is still lacking. The aim of our study was to evaluate the influence of the amount of myocardium subtended to an intermediate stenosis on FFR, especially in relation to quantitative coronary angiography.

01 febrero 2012

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Prediction of distal embolization during percutaneous coronary intervention for unstable plaques with grayscale and integrated backscatter intravascular ultrasound

Masahiko Shibuya MD, Atsunori Okamura MD, Hiroyuki Hao MD, Motoo Date MD, Yoshiharu Higuchi MD, Hiroyuki Nagai MD, Makito Ozawa MD,Tohru Masuyama MD, Katsuomi Iwakura MD, Kenshi Fujii MD

Objectives: We performed microscopic examination of the debris collected by a distal protection device and investigated the usefulness of grayscale and integrated backscatter intravascular ultrasound (IB-IVUS) for the prediction of distal embolization during percutaneous coronary intervention (PCI) in cases of unstable angina.

01 febrero 2013

CIRCULATION: CARDIVASCULAR INTERVENTIONS. Randomized Comparison of Sirolimus-Eluting and Everolimus-Eluting Coronary Stents in the Treatment of Total Coronary Occlusions

Raul Moreno, MD, PhD, Eulogio García, MD, Rui Teles, MD, Jose-Ramon Rumoroso, MD, Henrique Cyrne Carvalho, MD, PhD, Francisco Javier Goicolea, MD, José Moreu, MD, Josefa Mauri, MD, Manel Sabaté, MD, PhD, Vicente Mainar, MD, Lino Patricio, MD, Mariano Valdés, MD, PhD, Felipez Fernández Vázquez, MD, Angel Sánchez-Recalde, MD, Guillermo Galeote, MD, Santiago Jimenez-Valero, MD, Manuel Almeida, MD, Esteban Lopez de Sa, MD, Luis Calvo, MD, PhD, Ignacio Plaza, MD, PhD, Jose-Luis Lopez-Sendón, MD, PhD, Jose-Luis R. Martín, MD, PhD, for the CIBELES Investigators

Background—Patients with coronary total occlusions are at especially high risk for restenosis and new revascularizations. Sirolimus-eluting stents dramatically improved the clinical outcome of this subset of patients in randomized trials, but other drug-eluting stents, mainly the everolimus-eluting stent (currently the most frequently used stent), have not yet been evaluated in patients with coronary total occlusions. The objective was to compare the second-generation everolimus-eluting stent with the first-generation sirolimus-eluting stent in patients with coronary total occlusions.

01 octubre 2012

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Carina Shift Versus Plaque Shift for Aggravation of Side Branch Ostial Stenosis in Bifurcation Lesions. Volumetric Intravascular Ultrasound Analysis of Both Branches

Jianqiang Xu, MD, Joo-Yong Hahn, MD, PhD, Young Bin Song, MD, PhD, Seung-Hyuk Choi, MD, PhD, Jin-Ho Choi, MD, PhD, Chengzhi Lu, MD, Sang Hoon Lee, MD, PhD, Kyung Pyo Hong, MD, PhD, Jeong Euy Park, MD, PhD and Hyeon-Cheol Gwon, MD, PhD

Background—Although carina shift and plaque shift are suggested as mechanisms of side branch ostial (SBo) compromise after main vessel (MV) stenting in bifurcation lesions, there are few direct evidence. Our purpose was to confirm the mechanism of SBo compromise after MV stent implantation. Circulation: Cardiovascular Interventions. 2012; 5: 657-662 Published online before print October 2, 2012, doi: 10.1161/​CIRCINTERVENTIONS.112.969089. Copyright © 2012 American Heart Association, Inc. All rights reserved.

01 octubre 2012

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Optical Coherence Tomography Findings in Lesions After Sirolimus-Eluting Stent Implantation With Peri-Stent Contrast Staining

Takeshi Tada, MD, PhD, Kazushige Kadota, MD, PhD, Shingo Hosogi, MD, PhD, Shunsuke Kubo, MD, Masatomo Ozaki, MD, Mitsuru Yoshino, MD, Koshi Miyake, MD, Haruki Eguchi, MD, Noriyuki Ohashi, MD, Yuki Hayakawa, MD, Naoki Saito, MD, Suguru Otsuru, MD, Daiji Hasegawa, MD, Yoshikazu Shigemoto, MD, Seiji Habara, MD, Masao Imai, MD, PhD, Hiroyuki Tanaka, MD, Yasushi Fuku, MD, Naoki Oka, MD, PhD, Harumi Kato, MD, Hiroyuki Yamamoto, MD, Satoki Fujii, MD, Tsuyoshi Goto, MD and Kazuaki Mitsudo, MD

Background—We have sometimes noted abnormal angiographic coronary dilatation, <50% of the reference vessel, at the site of sirolimus-eluting stent implantation, suggesting contrast staining outside the stent struts and named this finding peri-stent contrast staining (PSS). Little was known about optical coherence tomography findings of lesions with PSS. Circulation: Cardiovascular Interventions. 2012; 5: 649-656 Published online before print September 25, 2012, doi: 10.1161/​CIRCINTERVENTIONS.112.968487. Copyright © 2012 American Heart Association, Inc. All rights reserved.

09 octubre 2012

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Valve-in-Valve Implantation of Medtronic CoreValve Prosthesis in Patients with Failing Bioprosthetic Aortic Valves

Axel Linke, MD*, Felix Woitek, MD*, Marc W. Merx, MD, Conrad Schiefer, MD, Sven Möbius-Winkler, MD, David Holzhey, MD, Ardawan Rastan, MD, Jörg Ender, MD, Thomas Walther, MD, Malte Kelm, MD, Friedrich W. Mohr, MD and Gerhard Schuler, MD

Background—Transcatheter aortic valve implantation (TAVI) using the Medtronic CoreValve (MCV) system might represent an alternative to conventional redo surgery in older high-risk patients with a failing aortic valve bioprosthesis. Circulation: Cardiovascular Interventions. 2012; 5: 689-697 Published online before print October 9, 2012, doi: 10.1161/​CIRCINTERVENTIONS.112.972331. Copyright © 2012 American Heart Association, Inc. All rights reserved.